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60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2012 Ceetron AS
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//
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include "cvfArray.h"
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namespace cvf {
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//=================================================================================================
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//
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// Triangle Vertex Splitter Class
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//
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//=================================================================================================
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class TriangleVertexSplitter
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{
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public:
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TriangleVertexSplitter(double creaseAngle, const UIntValueArray& origTriangleIndices, const Vec3fValueArray& origVertexArray);
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ref<UIntArray> triangleIndices();
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ref<Vec3fArray> vertexArray();
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ref<Vec3fArray> vertexNormals();
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ref<UIntArray> perVertexOriginalIndices(); // Per vertex (source) indices into origVertexArray
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private:
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void splitVertices();
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uint processVertex(uint origVertexIndex, const Vec3f& faceNormal);
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bool isNormalDifferenceBelowThreshold(const Vec3f& n1, const Vec3f& n2);
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private:
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double m_creaseAngle;
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const UIntValueArray& m_origTriangleIndices;
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const Vec3fValueArray& m_origVertexArray;
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bool m_isComputed;
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ref<UIntArray> m_triangleIndices;
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UIntArray m_origToUsedNodeMap;
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std::vector<uint> m_nextSplitVertexIdx;
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std::vector<Vec3f> m_vertexArray;
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std::vector<Vec3f> m_normalArray;
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};
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}
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